A portable aquatic chair that is suspendible within a contained body of water such as, but not limited to, a pool or spa. The chair includes an at least partially collapsible and lightweight frame that facilitates installation and transport of the chair. The chair is supported during use by the containment structure of the aquatic body (e.g., by a pool deck and side wall). Chair embodiments according to the invention support a user in a partially submerged but seated and upright position.